dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0

General

Target

dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Size

74KB
MD5

ac95056dcf2facad66d8369fb05b6728
SHA1

d3c428518cd0a238ed9ce0e1ccb30ba78cb656ae
SHA256

dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0
SHA512

ddabac509934d144bfb6181f08b31aeb2c617e0971148f08044c6c12dedf418a01ba4481e5678a8cf4565cee5b7d4d76d74e7f973fa9de007c27e8e3f1d2214b
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2152	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
File created	C:\Windows\SysWOW64\¢«.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
File created	C:\Windows\system\rundll32.exe	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717403370"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717403370"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
2152	rundll32.exe
2152	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2152	2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe	86
PID 2660 wrote to memory of 2152	2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe	86
PID 2660 wrote to memory of 2152	2660	dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe	86

C:\Users\Admin\AppData\Local\Temp\dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe
"C:\Users\Admin\AppData\Local\Temp\dcf6af128e27aecfa4b1ffba833eb001efbf03bc3197bbfd1922c18f77db73e0.exe"
1⤵
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2660
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
76KB

MD5
d0fcbdaa1fa270a17015879ab3ac85e2

SHA1
1234eb287ed8d5d415d3d0f31e43d2048c28989f

SHA256
bcf6e73f3f09b8ae991fcd9e4befccb3a68529a7c08fc51038c216ade585bcdc

SHA512
f94a99f01f98ed45db5e1d3a70457720c0a7a2d188f91da3c85fc7fd046f49ddb945ad845e386baad6a94604bbeb35a1473175f005fdd7757f17060fd47dea9c

Download Submit
C:\Windows\System\rundll32.exe

Filesize
74KB

MD5
65ad818bab315e5630e34333495ae145

SHA1
80fd1a1c75eb49201ee325b85d7a9fd90da79455

SHA256
1a68b00fe5d712458db222a5f4fb6050385c18c996291368d84966ea0bfe8845

SHA512
68c19dd7b4580767e14388d3a40f65d41876c47351da609a3c972c966887cca655f67a84bc57ef5e0f8dfef75d36454c13502ac43a8894ea2d1d1e89f482bf90

Download Submit
memory/2660-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2660-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads